During my tests with BackupPC_tarCreate I noticed that some files could not be
correctly restored from BackupPC. (Shrug!).
Running "BackupPC_tarCreate -h host1 -n 887 -s /usr . | tar xf -" I get the
following Error:
Error: padding
/var/lib/backuppc/pc/host1/887/f%2fusr/fshare/fwebapps/fgallery/f2.3.1/fhtdocs/fmodules/fnewitems/fpo/fru.mo
to 4154 bytes from bytes
In XferLOG.887 I see this for the file (and its neighbors)
same 644 0/0 3574
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ro.po
pool 644 0/0 4154
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ru.mo
same 644 0/0 5177
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ru.po
For the other files in this directory the first word is "same"!
When I try to restore the file it gets interesting.
If I select "Download Tar archive" I get a tar archive (restore.tar) containing
the ru.mo file which then contains 4154 bytes of 0's:
$ ll restore.tar
-rw-r--r-- 1 dan users 10240 Feb 19 15:33 restore.tar
$ tar xvf restore.tar
./ru.mo
$ ll ru.mo
-rw-r--r-- 1 dan users 4154 Jan 8 2011 ru.mo
$ hexdump -C ru.mo
00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
00001030 00 00 00 00 00 00 00 00 00 00 |..........|
0000103a
Selecting "Download Zip archive" on the other hand works OK:
$ ll restore.zip
-rw-r--r-- 1 dan users 1768 Feb 19 15:32 restore.zip
$ unzip -v restore.zip
Archive: restore.zip
Length Method Size Cmpr Date Time CRC-32 Name
-------- ------ ------- ---- ---------- ----- -------- ----
4154 Defl:N 1644 60% 01-08-2011 17:52 c11e0302 ru.mo
-------- ------- --- -------
4154 1644 60% 1 file
$ unzip restore.zip
Archive: restore.zip
inflating: ru.mo
$ ll ru.mo
-rw-r--r-- 1 dan users 4154 Jan 8 2011 ru.mo
$ hexdump -C ru.mo | head
00000000 de 12 04 95 00 00 00 00 15 00 00 00 1c 00 00 00
|................|
00000010 c4 00 00 00 1d 00 00 00 6c 01 00 00 00 00 00 00
|........l.......|
00000020 e0 01 00 00 1e 00 00 00 e1 01 00 00 07 00 00 00
|................|
00000030 00 02 00 00 5b 00 00 00 08 02 00 00 23 00 00 00
|....[.......#...|
...
Have I stumbled upon a bug in BackupPC_tarCreate?
--
Dan Johansson, <http://www.dmj.nu>
***************************************************
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Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
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